Gathright Dam, central Virginia

Moomaw is the result of Gathright Dam on the Jackson River in Alleghany County, Virginia and is used for flood control and recreation, among other things. Construction was completed in 1978. It has a normal surface area of 4 square miles. It is owned by the U.S. Army Corps of Engineers.

Gathright Dam, also known as Moomaw is rock fill, of earthen construction. The core is earth. The foundation is rock. Its height is 257 feet with a length of 1208 feet. Maximum discharge is 6100 cubic feet per second. Its capacity is 421500 acre feet. Normal storage is 123700 acre feet. It drains an area of 345 square miles.